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NS140 Chapter 9
hampter
| Question | Answer |
|---|---|
| Which of the following does NOT influence how rock responds to tectonic stress? | degree of deformation |
| Which of the following describes the conditions most likely to increase the plasticity of rock? | high temperature and high pressure over a long period of time |
| Which of the following describes a joint? | A fracture across which the rock on both sides does not slip. |
| Which of the following does NOT describe a fault? | New fractures tend to form nearby a previously active fault. |
| Which of the following describes the formation of a reverse fault? | Reverse faults are formed by horizontal compressive forces. |
| Ore mining often occurs in what geological structure? | a fault zone |
| Which of the following describes stress? | the force exerted against a rock |
| A geologist is walking along a geological fracture in basalt overlain by granite. The overlying granite is obviously affected by erosional processes and is eroding away to expose more basaltic rock beneath. What geological feature does this represent? | a joint |
| Earthquakes tend to occur repeatedly in the same areas of the world. Which of the following explains why this is the case? | Tectonic forces occur in the same places overtime. |
| Which of the following describes why mountains may form in areas where plates are converging, diverging, or sliding past one another? | The movement of tectonic plates results in stresses on rock that affect the isostacy of the crust. |
| Which of the following describes orogeny? | all of the processes that occur during mountain building as well as the process of mountain building itself |
| Which of the following is an isostatic factor that may result in mountain formation at a subduction zone? | expansion and thickening of the lithosphere due to magmatic activity |
| Which of the following results in isostatic changes that may lead to mountain formation? | changes in the density and thickness of the lithosphere |
| Which of the following is NOT a convergent boundary associated with mountain formation? | the sliding of one continental plate against another continental plate |
| Which of the following describes the formation of an island arc? | An island arc is a volcanic mountain chain that forms when two plates of oceanic crust converge. |
| A geologist finds a mountain chain primarily made of igneous rock with some sedimentary rock, alongside a subduction complex running parallel to it. What type of convergent plate boundary formed this mountain chain? | a subduction zone where one continental and one oceanic plate collide |
| Which of the following is NOT a process that contributed to the formation of the Himalayas? | subduction at a continental margin. |
| Which is NOT a way mountain formation can affect Earth systems? | Mountains abruptly affect the migration patterns of animal communities such as birds. |
| Which of the following is NOT a feature that forms during mountain formation at a convergent boundary? | underthrusting. |
| Miners from a nearby mine have reported that the hanging wall of a mine has begun to move upward. They note that the angle of the hanging wall is almost perpendicular to the footwall. What type of fault are they likely working in? | a reverse fault |
Created by:
robynlee
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